Rotary drilling machine



Sept. 6, 19.32.l E'. zER'aE-E'r Al. y 1v876,126

ROTARY DRILLING CHINE Findlay 2e, 195o 2 sheets-sheet 2 Patented Sept. 6, 1932 v UNITED STATES P'TENT ori-*ica a LEWIS E. zenne, or MONETA, AND DAVID s. Fan'LxNnn, or Los'ANaELEs', CALIFORNIA, assreNoRs To THE NATIONAL SUPPLY courir-NY, or'rommo, orrio, a concerna- TION F 0R10 Nomar DnILLINGmomNn appnemon med my as, raso. :um in. man

Our invention relates to rotary drilling machines with hydraulic feed.

. One object of this invention is to provide a. rotary drilling machine whose rotary table is provided with a pendent sleeve posiy tioned within the base of the machine and driven rotarily by a gear wheel in the base and on the sleeve. Another object is to provide features whereby the drill rod may be simultaneously sustained and rotated and at the same time vertical movement imparted to the drill rod. Other objects will be better understood after description of the apparatus has been made.

Referring to the accompanying drawings Fig. l is a combination view, the left han half showing our invention in central vertical section while the right hand half shows the same in side elevation, a portion of the right hand halffbeing broken away. Fig. 2

is a plan View of our drilling apparatus.'

' Figs. 3 and 4 are respectively cross sections said ribs and grooves. The ribs on the gear are marked 9 and on the sleeve 10. Thus, the gear. 4 can rotate the sleeve while the sleeve may be-moved vertically in the gear.

The table 7 is sup orted onl the ball bearing ll-carried by t e horizontal spider 12 which supports the three pendent vertical piston rods 13. As shown in Fi 1 ,each piston rod has near its u pery end t ie shoulder 14 engaging the un er face of the spider. The upper ends of the pistonrods extend through the spider and are secured thereto by nuts 15. The sleeve 8 has above the gear 4 the ring 16 screwed thereon and supporting the ball bearing 17. The upper face 18 of this bearing isengaged by the under face of the spider The'` ball vbearings l, 11 and 17 respectively receive the down and up thrusts which the table 7 may haveapplled thereto. The ring16 is revented from rotation bya dowel 19 w ich isy passedy through the lower part of the ring and projects intc'one ofthe said grooves in the sleeve. i f .f f t.

The base 1- carries 'three vertical cylinders 20 clampedthercto by `the brid ye pieces 21 which are secured to the base li The cylinders' 20 contain the liners 23, there y bolts 22.y

heilig between each` liner and its surround'- ing cylinder an annular passage 24 which is connected to the horizontal passage 25 inthe base. This ypassage 25 has connection withv the annular passage 24 in each cylinder as is. j y clearly shown kin Fig. 3. The passage -25 receives and discharges fluid vthrough the port 26 connected to a suitable source of hydraulic power.v l y The lower end of` the cylinders 2O have screwed thereinto the working c linder's 27 in which workpistons 28 attac edto the 5 piston rods13. The j working cylinders 27 are connected yto lthe' annular passage 24 by ports 28.` The caps -29 on the lower ends of the working cylinders 27 support the ring 30 .havingthereinthe annular passage 31 con-f` nected to the working cylinders 27 below the pistons. Hydraulic fluid pressure is applied to the passage, 3lthrough the kport 32.

AThe rotary vtable 7 Vis constructed to receivethe table bushing 33 adapted to receive the slips 34 which grip thev drill rod 35 in the usualmanner, the drill ro'd being posi-l tioned concentrically with the table 7 and the sleeve-8.

The extension 36 of the base 1 Y.carries vthe I mechanism for rot-ating the'gear` 4. This gear is intermeshed with the gear-'37 on the vertical shaft 38 which. is connected-"by the beveled gears 39 to the horizontal shaft 40 having the sprocket wheel 41 connected to loe rotating, the spider then being indirectly supported by the base. We claim 1. In a rotaryldrilling machine, a base 5 having a vertical opening with an annular recess therein opening inwardly, a gear supported bythe lower wall ofthe recess, means carried by the upper wallgof the recess for resisting the upper movement of the gear, a

l0 sleeve splined to the gear and positioned in the opening, means for elevating the sleeve,

controlling its descentLand maintaining it at any selected elevation, al well drilling table secured to the top of the sleeve, and means for rotating the gear.

2. In a rotary drilling machine, a base having avertical opening, an annular recess within said base and-in communication with said vertical opening, a sleeve having vertical travel in the opening, an annular gearl carried by the base rotatably mounted within said recess and having a connection with the sleeve whereby the sleeve may be rotarily driven and permitted to travel vertically,

hydraulic means for elevating the sleeve and controlling its descent and maintaining it at any selected elevated position, and a well drilling table ixedly connected to the top of the sleeve.

3. In a rotary drilling machine, a base having a verticalopening, an annular recess within said base and in communication with said vertical opening, a sleeve having vertical travel in the opening, an annular gear carried by the base rotatably mounted within said recess and having a connection with the sleeve whereby the sleeve may be rotarily driven yand permitted to. travel vertically, hydraulic means for elevating the sleeve and controlling its descent and maintaining it at any selected elevated position, a well drilling table fixedly connected to the top' of the sleeve, and a drill rod gripping means carried by the table.

4B 4. ,In a. rotary drilling machine, a base i having a vertical opening, an annular recess wlthin sald base and 1n communication with said vertical open1ng,a sleeve having vertical travel in the opening), an annular gear carried by the base rotata ly mounted Within said recess and having a connection with the sleeve whereby the sleeve may be rotarily driven and permitted to travel vertically, hydraulic means for elevating the sleeve and controlling its descent and maintaining it at any selected. elevated position, a well drill ing table xedly connected to the top of the sleeve, and means for supporting the table on the base when the table is in its lowest position.

In testimony whereof we aiiix our signa-r tures.

LEWIS E. ZERBE.

DAVID s; FAULKNER. 

